John demabest



' llrnrie-DA fS'lT-Afrnsg- PATENT OFFICE.

JOHN DEMAREST, OFNEW YORK, N, y', ASSIGNOR TQ THE VJ. L MOTT IRON y WORKS, OF SAME PLACE.

.FLusHlNG APPARATUS FOR wA-rgmCLOSEj-S &C

SPECIFICATION forming parrf Letters Patent No. 381,221, dated April 17, 188e.

Application filed October 17, 1887. SrerialNo. 252,547. (No model.)

To aZZ whom it may concern'. Y

Be it known that I, JOHN D nMAREsT, of the city and State of New York, have invented an Improvement in Flushing Apparatus for 5 Closets, Sewers, Sto., of which the following is aspccification. t 4 Sewers and drains are liable to become obstructed' by a deposit from a gradual dow of dirty water, and in case where a periodicalv IO flushing has been provided there'is risk of the apparatus becoming obstructed by pieces of paper or by small foreign substances in the Water passing into the pipes or valves of the flushing-cistern.

' I 5 My present invention is adapted to the rapid discharge of Water periodically, whether'the water is clean or more or less contaminated with foreign material.

I make use of a cistern or reservoir of any 2o desired size or character, and into this fresh water is allowed'to run, said waterfcoming from any desired sourcefor Water from sinks, basins, or'water-closets may pass intothis reservoir, and-the discharge-pipe rises within 25 the reservoir and has at its upper end a valveseat, valve, and Heat, and around the valve, f oat, anddischarge-pipeisasiphon-case; hence when the liquid in the reservoir hasaccumulated suiiciently to 'lift the iloat and valve the 3o liquid rushes into the discharge-pipe, filling the same and causing a siphonic action that,

instantly returns the valve to litsseat, and the contents of the reservoir are drawn away Ythrough the oat and discharge-pipe; and it 3 5 is to be observed that the valve is protected by the siphonic case, softhat it is not liable to become obstructed by any floating substance,

and the valve is`instantly returned to its seat as soon as the discharge-pipe is illed, so that.

4o foreign substances are not drawn away over the valve-seat, but simply throughthesiphon.

In the drawings I haveshown my improved cistern or reservoir in connection with a range of vprivies, as the same is specially adapted'to 45 washing out such p'rivies and the sewers with which they are connected;

'Figure l is a vertical section of the cylinder. Fig. 2 isa section' of the range of privies and an elevation of the cistern and ushing- 5o pipe. Fig. 3 is a section in larger sizeatthe line m a.'` Fig. 4 zis a plan viewofja portion of 'the' range of privies. Fig. 5 is a section at the junction of the primary and-secondary flushingpipes. l f The'cistern or reservoir A is of any` desired 5 5 size-.usually it will be'deeper in proportion than represented i-n-Fig.rl,as indicatedby the dotted lines-andBillustrates thepipethrough which kthe-water runs intothe cistern. I t

The sewer or discharge pipe C passes;` pref# 6o erably, through the bottom of thel ciste'rn, and it rises to any desired heightfwithinV such cistern, and at` the upperlend thereof. is a valve-v seat, D. f f f The doat-E is an openfvessel, at thebottom 65 -of which isa valve, F, to rest upon the seat t D, and this float lE is guided in any suitable manner, so that` it may move vertically a short l v 1 distance. I have shown the slotted tubular extension, Gl at the bottom of the float passingk 7ok A I into the upper'endof the discharge-pipe C as the guide for such lloat, and there are stops H, preferably elastic, upon the under side of the Siphon-cover l, ythat limity the upwardi movement of the float 7 5f i Y The siplioncase Ksurrounds the o'at'E and pipe G, and it extendsjnearly to the bottom y of the cistern A, audit is supported in any f convenient manner.-A I have shown the legs 2 f as bolted to the bottom'of the cistern. 8O i Thetloat E will not rise until the Water in the l tank A reaches ncarlytothe top of such float, and as soon as the float rises and lifts the valves F off thevseat vD the waterrushesviolentlyinto kthe pipe C, and by its'suction action draws the 85 air out of the float E and out of the upper part of the Siphon-case K, and the doat Einstantly descends and the valve F closes upon the seat D,and the si phon is filled with Waterland continues to act rapidly and with great force to 9o exhaust the contents of the cisternl A andto Hush the privy, sewer, or drain with Awhich itA l 'is connected.

This improvement is of lgreat utilityfespe cially in tenement houses, where the Washingg5 v water can be made use of lfor flushing the-privies and Washing out the drain-pipes, so as to carry away the voluminous refuse material and- `prevent the obstruction of the sewer-pipe. I

have therefore represented the discharge-pipel roc 4 c C as flushing the nearly-horizontal container L below the privy-seats M and carrying the excreta and foreign materials to the sewer-pipe Q. I find it important to make use of a deiiector, O, at the lower end of the flushing-pipe C, to prevent the Water dashing up against the under sides of the seats M, and also to use an overhanging deect'or, P,'over the sewer-pipe Q, and beneath which deiector the flushingwvater dashes, and in striking the end of the container L some portion thereof is usually thrown upwardly,and then it is deflected downwardly by the hanging deflector P, so that it cannot dash against the under side of the seat at this end, and I use a secondary flushingpipe, R, running along at the front or back of the seats within the container L and slotted or perforated on its under side to wash the vinclined back surface of the inside of the container, and this secondary flushing-pipe R passes into the flushingpipe C and is turned np wardly with a mouth, S, that receives a portion of the ushing-water as it rushes down the pipe C and causes the same to flow through the secondary iiushing-pipe R.

I claim as my invention- 1. The combination, with the ci'stern or reservoir A, of a stationary Siphon pipe or case, K, closed at its upper end, the discharge-pipe C, extending up within the Siphon-case K and having a valve-seat at its upper end, a float within the case K,open at the upper end, and a valve at the lower end to rest upon the seat to close the discharge-pipe, substantially as set forth.

2. The combination,in a cistern or reservoir,

Athe case open at the top and forming a continu ation of the discharge-pipe, and a valve between such float and the discharge-pipe, substantially as specied.

4. The combination, with the container L for a range of privies, of the flushing-pipe C, supplycistern A, and detlector (),to direct the water along the bottom of the container, the sewer-pipe Q at the distant end of the container, and a defiector over the sewer-pipe and hanging fromthe top of the container,with its lower edge above the bottom of the container, to allow the Water to pass freely under the delector into the sewer and prevent the water splashing back from the end of the' container, substantially as specified.

Signed by me this 12th day of October, A. D. 1887.

JOHN DEMAREST.

Witnesses:

GEO. T. PINCKNEY, WILLIAM G. MoTT. 

